Stair riser carpet cleaner nozzle



FIG. 1 is a perspective view of a stair riser carpet cleaner nozzle showing my new design;

FIG. 2 is a top, front and side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is an end elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevation view thereof; and,

FIG. 8 is an end elevation view of the opposite side of FIG. 4.

The details shown in broken lines form no part of the claimed design. 

The ornamental design for a stair riser carpet cleaner nozzle, as shown and described. 